mdw@git.distorted.org.uk Git - sgt/puzzles/blob - gtk.c

   1 /*
   2  * gtk.c: GTK front end for my puzzle collection.
   3  */
   4
   5 #include <stdio.h>
   6 #include <stdlib.h>
   7 #include <stdarg.h>
   8
   9 #include <gtk/gtk.h>
  10
  11 #include "puzzles.h"
  12
  13 /* ----------------------------------------------------------------------
  14  * Error reporting functions used elsewhere.
  15  */
  16
  17 void fatal(char *fmt, ...)
  18 {
  19     va_list ap;
  20
  21     fprintf(stderr, "fatal error: ");
  22
  23     va_start(ap, fmt);
  24     vfprintf(stderr, fmt, ap);
  25     va_end(ap);
  26
  27     fprintf(stderr, "\n");
  28     exit(1);
  29 }
  30
  31 /* ----------------------------------------------------------------------
  32  * GTK front end to puzzles.
  33  */
  34
  35 /*
  36  * This structure holds all the data relevant to a single window.
  37  * In principle this would allow us to open multiple independent
  38  * puzzle windows, although I can't currently see any real point in
  39  * doing so. I'm just coding cleanly because there's no
  40  * particularly good reason not to.
  41  */
  42 struct window_data {
  43     GtkWidget *window;
  44     GtkWidget *area;
  45     midend_data *me;
  46 };
  47
  48 static void destroy(GtkWidget *widget, gpointer data)
  49 {
  50     gtk_main_quit();
  51 }
  52
  53 gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
  54 {
  55     struct window_data *wdata = (struct window_data *)data;
  56
  57     IGNORE(wdata);
  58
  59     if (!midend_process_key(wdata->me, 0, 0, event->keyval))
  60         gtk_widget_destroy(wdata->window);
  61
  62     return TRUE;
  63 }
  64
  65 gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
  66 {
  67     struct window_data *wdata = (struct window_data *)data;
  68
  69     IGNORE(wdata);
  70
  71     return TRUE;
  72 }
  73
  74 static struct window_data *new_window(void)
  75 {
  76     struct window_data *wdata;
  77     int x, y;
  78
  79     wdata = snew(struct window_data);
  80
  81     wdata->me = midend_new();
  82     midend_new_game(wdata->me, NULL);
  83
  84     wdata->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  85
  86     wdata->area = gtk_drawing_area_new();
  87     midend_size(wdata->me, &x, &y);
  88     gtk_drawing_area_size(GTK_DRAWING_AREA(wdata->area), x, y);
  89
  90     gtk_container_add(GTK_CONTAINER(wdata->window), wdata->area);
  91     gtk_widget_show(wdata->area);
  92
  93     gtk_signal_connect(GTK_OBJECT(wdata->window), "destroy",
  94                        GTK_SIGNAL_FUNC(destroy), wdata);
  95     gtk_signal_connect(GTK_OBJECT(wdata->window), "key_press_event",
  96                        GTK_SIGNAL_FUNC(key_event), wdata);
  97     gtk_signal_connect(GTK_OBJECT(wdata->area), "button_press_event",
  98                        GTK_SIGNAL_FUNC(button_event), wdata);
  99     gtk_widget_show(wdata->window);
 100     return wdata;
 101 }
 102
 103 int main(int argc, char **argv)
 104 {
 105     gtk_init(&argc, &argv);
 106     (void) new_window();
 107     gtk_main();
 108
 109     return 0;
 110 }